Hydraulic remote control device



June 24, 1941.. R. L LEVY 2 73 HYDRAULIC REMOTE CONTROL :DEVI-C'E Original'Filed Sept. 12, 1938 Patented June 2 4, 1941 I v I l .mi-ttlns stations,

amen v HYDRAULIC REMOTE GONTBOLDEVIOE Renfi hide: my. run. France, assignor to Socit d'lnventions Aronautiqucs et Mecanlqncl 8. I. A. M Irlbonrr, Switzerland llrizinal application September 12, 1938, Serial No. 229,837. Divided and this application June 29, am, BetlaiNo. 343,308. In France September, 1%;

l comm. icl. Bil-54.5).

This application is a division ol application terposed on the pipes l-i or t% issuing re= 361% 37, filed hem, it, lost. oneotlvely from said stations.

The invention relates to hydraulic devlcm. Each irreversibility box contains a floating which enable the movement of several or one piston p which normally occupies a mean posiflitting members to he reprod at adistion in the box. Valves q-s are mounted on tance on a common receiving menihcrn corresponding seats which are fired inside the Inpractice, it is frequently reduirm to control, box, beyond the opening of the nines l and t at will, a receiving station it relatively to the centre or the box. of two or more independent sta- Bald valves q-s are adapted to open in options, under such conditions that the control aclo mite directions and away rrom said center, tion. exerted by any one oi said trananlttlng The extreme compartments t-o of the hon stations only meets the reoeivihn station and communimte with the general pipes Y-Z which does not exert any influence on the other trans= connect the two transmitting stations to each I other and'on which the receiving station R. is

Controls of this type are rediiiren in hertlcnlt mounted in parallel by means oi pipes t-L lar on trains drlven by automotive cars, in which This device operates as iollows: it has to be possible to control amotor from a For example, by acting on the lever Le in the .iront station or iron a rear station, accordion direction oi the arrow .7, the liquid which is drivat present, in such caseain order to neutrals to the direction of circulation of the vehicles. on into the pipe 2, on the one hand opens the valve c and on the other hand urges the niston to ire the station which is not being we tor the in the direction or the arrow, so that the valve s wilt inter also cpem.

- iroseol on the plow that connect eaiol ctctlonto wonsmnentiy, on the one hand the liquid the motor, or again in other syatems, he has to j which is'driven into the pipe loan now through look a lever or the like or said station 1 W, the pipe l and. the branch a into the right hand In order to avoid these it. initiations and cylinder oi the receiver B, so that the controllers! consequently eliminate the drawhaclse thct my lever L reproduces the movements or the lever he involved by their accidental no; the in= h in a homologous manner. vention relates to a .rlevlce which enables a re on the other hand, the liquid which is driven celvins station to he alternately controlled in" to into the left hand cylinder of the receiver R by their ii tatlonst the actual omratlon of said receiver, can flow.

without the action of any mm were: etainto the compartment to through the lollies l and tion afiectine the other rim-1* statlona h, then. the valve s heine open, can now into the Said device, which is httea'at the ontnnt oil We l and into the right hand. cylinder of the or the transmitting stations, on the two tt'int station 'l. It will readily-he seen P pes issuing from. Salli station, m lll M m t the transmitting station 'l r iains inop irreversibility h d h r sr n ilr mmeiotive coins to the fact that the Liquid which rises a cylinder contalnins a fieli l h'i h m is driven into the pipes Y and Z closes the valves said pipes opening on either side cl cairl piston, o and a or aaiol'station '1'". The controlling acme p fi 81695 0? which m elitta to not w tlon of T does not therefore exert any influence rewectively on two valves which once o m m To,

site directions, the outer oomhaltmeh tm Mid similarly, the control of the recelvi station valves respectively commnnicatint with the two R b o a met exert, any influence if general Pipes which are jammed Although the example considered above regggfi gg 'g jgfz f gi gggm i Emgwm lates to the case oi two transmitting stations as- In the example, two in?!" etatlone with a single receiving Emmnr it is 1 have m be game m mmmfib w vious that the irreversibility hoxes could-he apstation R alternately, under such continent that with e -m results, lit-Items thecontrolled memlaer L cl sale rweirlne on to ricing more than two transmitting stations.

em occupjeg at every 11: to a momologam e The applications oi these irreversible control sition to that of the controlling memher, either 1 W are multiple: f r empl the control n L of the gases for an engine from a plurality oi At the output of each or the t m we tions '1 and. '1 an irreversibility hon M in- In the case or a single transmitting station, n

mitting station, a floating piston mounted in i said box, said two pipes opening on either side- I of said piston, and two-valves respectively actuated by the two opposite faces of said piston, the outer compartments of said valves being connected to the other transmitting stations and, to

the receivingstation.

RENE LUCIEN 

